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Rapid prototyping of heterostructured organic microelectronics using wax printing, filtration, and transfer† † Electronic supplementary information (ESI) available. See DOI: 10.1039/d1tc03599a

ABSTRACT: Conducting polymers are the natural choice for soft electronics. However, the main challenge is to pattern conducting polymers using a simple and rapid method to manufacture advanced devices. Filtration of conducting particle dispersions using a patterned membrane is a promising method. Here, we show the rapid prototyping of various micropatterned organic electronic heterostructures of PEDOT:PSS by inducing the formation of microscopic hydrogels, which are then filtered through membranes containing printed hydrophobic wax micropatterns. The hydrogels are retained on the un-patterned, hydrophilic regions, forming micropatterns, achieving a resolution reaching 100 μm. We further solve the problem of forming stacked devices by transferring the acidified PEDOT:PSS micropattern using the adhesive tape transfer method to form vertical heterostructures with other micropatterned electronic colloids such as CNTs, which are patterned using a similar technique. We demonstrate a number of different heterostructure devices including micro supercapacitors and organic electrochemical transistors and also demonstrate the use of acidified PEDOT:PSS microstructures in cell cultures to enable bioelectronics. This work presents a simple yet powerful method to micropattern electronic multilayer heterostructures of conducting polymers and nanomaterials. Using wax printing, filtration and tape transfer, we rapidly prototype advanced heterostructure devices.

SUBMITTER: Ouyang L

PROVIDER: S-EPMC8552910 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature

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